baber/WOPTO huggingface dataset:
Patent CA-1282777-C (CA)
Title: Process to dissociate and extract the lignin and optionally the xylan from the primary wall and middle lamella of lignocellulosic material which retains the structural integrity of the fibre core, and the product so produced
Inventor: DE LONG EDWARD A
IPC: C07G1/00
Filed: 1987-09-17
Granted: 1991-04-09
Abstract: Abstract This patent is related to the separation of the fibres from each other in lignocellulosic (straw, bagasse, wood) composites, and at the same time to dissociate the Lignin and the Xylan in the middle lamella and the primary wall of the lignocellulosic material, to enable a simple non reactive solvent extraction of the middle lamella and primary wall components while substantially retaining the structural integrity of the fibre bundle, sometimes referred to as the S2 layer, which is the strength member of the lignocellulosic fibre.  The purpose of this process is to produce a fibre suitable to replace conventional Chemical Thermal Mechanical Pulp, for paper or as a carrier for high absorbency Cellulose in diaper and similar absorbent material applications, and at the same time to recover the chemical components of the middle lamella and the primary wall of the fibre, as co-products in a marketable, chemically reactive form.
Patent CA-1278363-C (CA)
Title: High speed trunk interface with concurrent protocol handlers
Inventor: HEDLUND KURT A
IPC: H04L12/58
Filed: 1987-10-20
Granted: 1990-12-27
Abstract: HIGH SPEED TRUNK INTERFACE WITH   CONCURRENT PROTOCOL HANDLERS           Abstract A digital trunk interface utilizing the first protocol handler to signal the start of a packet and a second protocol handler responsive to the packet delayed to initiate the storage of the packet internally to the digital trunk interface.  The digital trunk interface comprises a microprocessor and two universal synchronous asynchronous receiver transmitter (USART) circuits.  One USART is directly connected to the incoming digital trunk and is utilized to inform the microprocessor when a packet is first received.  The second USART receives the packet delayed by a predefined amount of time from the digital trunk.  The microprocessor is responsive to the signal from the first USART that a packet has been received to perform the necessary administrative functions for receipt of the packet by the second USART.
Patent CA-1299038-C (CA)
Title: Electromagnetic fuel injector and method of producing  the same
Inventor: YOKOYAMA MIZUHO
IPC: F02M51/08
Filed: 1987-10-26
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE          An electromagnetic fuel injector suitable for use in an automotive engine has a cylindrical yoke consti-tuting a body of the fuel injector, a solenoid coil and a stator core fixedly received in the cylindrical yoke, a movable core adapted to be attracted by the stator core, and a movable valve responsive to the movable core so as to be moved into and out of contact with a fuel injection valve seat in accordance with the balance of force between an electromagnetic force produced by the solenoid coil and a force produced by a spring received in the stator core.          The stator core is coaxially received in the cylindrical yoke with a portion of the material of either one of the stator core and the yoke being plastically deformed into an annular groove formed in the opposing surface of the other of the stator core and the yoke.  In consequence, the stator core and the yoke are coupled to and held on each other by the contracting force produced by the plastically deformed material in and around the annular groove.  Also disclosed is a method of producing this fuel injector.
Patent CA-1282197-C (CA)
Title: Process for incorporation of fluoropolymers into polycarbonates
Inventor: CARTER RUSSELL P JR
IPC: C08J3/215
Filed: 1987-12-01
Granted: 1991-03-26
Abstract: ABSTRACT OF THE DISCLOSURE The present invention is related to polycar-bonate molding compositions containing a co-precipitate of 2 polycarbonate resin and a fluoropolymer.  This co-precipitate was found to be suitable as an additive for polycarbonate resins because it offers improved dispersibility with the resin and good flammability performance as well as aesthetic characteristics.  The co-precipitate is prepared by first mixing an aqueous dispersion of a fluoropolymer with a polycarbonate solution and then precipitating both using a suitable precipitation agent.  After isolation washing and drying the co-precipitate of the invention is suitable for incorporation in a polycarbonate resin optionally with known flame retarding agents.  Molded parts prepared from the compositions of the invention are characterized by their improved homogeneity and flame retardance.
Patent CA-1326159-C (CA)
Inventor: YBEMA JAN
IPC: A23K1/18
Filed: 1987-12-02
Granted: 1994-01-18
Abstract: ABSTRACT            The present invention relates to a method of promoting  the  growth  of  piglets.     The  method  is characterized by administering a dry mixture - possibly as part of the grubbing layer in the pigsty - comprising 1 - 4 parts of moisture, 1 - 25 parts of fat, 18 - 28 parts of protein, 13 - 20 parts of minerals, 3 - 5 parts of citrate, 3 - 5 parts of calcium formate and 30 - 50 parts of lactose.          The invention also relates to a method of preparing a suitable mixture comprising compost, earth or the like, and 10 - 60% of the above dry mixture.  Finally, the invention concerns a method of preparing a suitable piglet fodder which, in addition to the conventional components of piglet fodder, contains 5 - 25% of the above dry mixture.
Patent CA-1305884-C (CA)
Title: Optical low-pass filter
Inventor: ISE KOICHI
IPC: H04N9/07
Filed: 1987-12-21
Granted: 1992-08-04
Abstract: OPTICAL LOW-PASS FILTER                 ABSTRACT OF THE DISCLOSURE   An optical low-pass filter for use in the optical system of a color video camera has first and second periodic structures on the same or opposed major surfaces of a transparent substrate and which are dimensioned and arranged in respect to each other to provide modulation transfer function, in at least the horizontal scanning direction of the camera, which is higher than a predetermined value for frequencies in a range lower than a cut-off spatial frequency and which is low over a range of frequencies extending from the cut-off spatial frequency to substantially more than twice said cut-off spatial frequency.
Patent CA-1281191-C (CA)
Title: Cryostat cooling system
Inventor: SULLIVAN DANIEL C
IPC: F25D3/10
Filed: 1988-01-06
Granted: 1991-03-12
Abstract: CRYOSTAT COOLING SYSTEM             ABSTRACT OF THE DISCLOSURE        A cryostat cooling system cools the central processor  (CP)  circuit  boards  of  a  computer  to enhance the performance of the electronic components of the central processor.  The cryostat includes a pair of concentrically positioned circular cylindrical shells.  The inner shell is suspended from the outer shell by a thin (small cross-section) thermal isolation support ring.  A vacuum chamber is formed between the inner and the outer shells.  The top of the inner shell is covered by an inner shell top plate having a pair of openings through which the CP boards are inserted.  A pair of containment vessels are mounted below the inner shell top plate to receive the CP boards.  An inlet supply tube is connected to the containment vessel to supply liquid nitrogen.  Overflow vents permit excess liquid nitrogen and nitrogen gas to flow from the containment vessels into the interior of the inner shell.  A drain tube is connected to the inner shell to remove and recirculate the gaseous and liquid nitrogen from the interior of the inner shell.  Each CP board is connected to an associated central processor memory board by a connector block which seals the opening while permitting the flow of signals between the central processor memory and the central processor.
Patent CA-1299408-C (CA)
Title: Method and apparatus for switching optical connector
Inventor: KAMIKO KAZUO
IPC: G02B6/40
Filed: 1988-01-08
Granted: 1992-04-28
Abstract: METHOD AND APPARATUS FOR             SWITCHING OPTICAL CONNECTOR              ABSTRACT OF THE DISCLOSURE     A method for switching an optical connector having paired optical connectors, pins engaged with engaging holes of the optical connectors, which involves connector disposing step of disposing the switching optical connector parallel to the separating optical connector, pin forward moving step of moving the pins engaged with both the reconnecting and separating optical connectors each other to the reconnecting optical connector side, then connecting switching step of relatively moving the reconnecting optical connector, the separating optical connector and the switching optical connector and the front end faces thereof, and then pin backward moving step of moving the pins of the reconnecting optical connector side to the switching optical connector side. Thus, the method and an apparatus for switching an optical connector can momentarily switch to connect optical transmission units with optical connectors without depending upon a worker's skill as well as mechanize or automate the replacing work.
Patent CA-1280063-C (CA)
Title: Polymer film composition for rinse release of wash additives
Inventor: OGAR GEORGE W JR
IPC: C11D17/04
Filed: 1988-01-22
Granted: 1991-02-12
Abstract: ABSTRACT OF THE DISCLOSURE     A polymeric film for the rinse release of wash additives comprises an outer film layer of a hydroxybutylmethylcellulose (HBMC)/hydroxypropylmethycellulose (HPMC) blend.  An inner film layer is a PVA film having a metalloid oxide cross-linking agent present in an amount sufficient to cause the PVA film to gel in a pH of below about 9Ø  Both film layers include a plasticizer and may include a surfactant.  The film can be used as a seal for an insoluble container, or made into a water-soluble pouch.  Optionally, either a third film layer of the HBMC/HPMC blend, or a nonwoven fabric layer may be included for greater durability.  The films remain intact during normal wash cycles and over a range of typical water temperatures, then rapidly dissolve in the rinse.
Patent CA-1288280-C (CA)
Inventor: MUENCH HELMUT
IPC: B41K1/12
Filed: 1988-03-28
Granted: 1991-09-03
Abstract: Abstract A detent holder for type wheels used in printing machinery has balls that are installed in stepped drilled holes in the supporting shaft and an elastic insert that is installed in another drilling in the supporting shaft, this elastic insert serving as springing for the balls.
Patent CA-1298399-C (CA)
Title: Television receiver incorporating a video cassette recorder and capable of displaying a sub-channel picture within a main-channel picture
Inventor: HAKAMADA KUNIO
IPC: H04N5/44
Filed: 1988-03-30
Granted: 1992-03-31
Abstract: 39-0100.2074 PATENT ABSTRACT OF THE DISCLOSURE A television receiver incorporating a video cassette recorder and having a display, for example, a picture screen, for showing a main-channel picture within which a sub-channel picture may be superimposed, includes first and second tuners which are independently controllable for each selecting one of a number of broadcast channels, with the video signal broadcast on the channel selected by the first tuner being supplied to the display for forming the main-channel picture while the video signal broadcast on the channel selected by the second tuner is supplied to the display for forming the sub-channel picture in a sub-channel picture display mode of the receiver, and a system controller is programmed so that, when initiating a recording mode of the video cassette recorder, the second tuner is made to select the same broadcast channel as the first tuner.
Patent CA-1298913-C (CA)
Inventor: BOULDIN ERIC W
IPC: G11B7/24
Filed: 1988-04-15
Granted: 1992-04-14
Abstract: Abstract of the Disclosure A data card for optical information featuring a gelatin layer having a thin black crust at the top of the layer.  The crust is formed by developed black irregular oblong silver particles within the top 0.5 micron of the gelatin colloid matrix.  The remainder of the colloid matrix is substantially clear gelatin and a reflective metallic layer is disposed below the gelatin.  The strip is laminated into a wallet-size card and may be pre-patterned during formation of the crust with control indicia or pre-recorded data.  User data may be recorded by modifying the black silver particles in the crust with a laser to expose the reflective underlayer.  A laser or other light source is used to read data on the medium with optical contrast between the black surface metallic layer underlying the gelatin layer which can be observed in the recorded spots.
Patent CA-1301663-C (CA)
Title: Street sweeper machine with trash pick-up and transport capabilities
Inventor: ZONI SERGIO
IPC: E01H1/08
Filed: 1988-05-09
Granted: 1992-05-26
Abstract: ABSTRACT A street sweeper machine is provided for picking up and transporting trash comprising a frame (2) having a main longitudinal dimension and engaging front (4a,4b) and rear (5a,5b) wheels, a driver's cab (3), motor members (44,48), a trash bin (6), a roll brush (11) located between said wheels and having a symmetry axis (12) parallel to a surface to be cleaned and transverse to said longitudinal dimension, a trash conveyor (10) conveying trash from said roll brush (11) to said bin (6), and steering members (22) engaging all of said wheels to make all of them steerable and adapted to define an intersect point (13) for the axes of said wheels in cornering which lies proximate a continuation of said symmetry axis (12) of said roll brush (11).
Patent CA-1318341-C (CA)
Title: Electric furnace arrangement
Inventor: ZAJICEK ERNST
IPC: F27B3/16
Filed: 1988-05-10
Granted: 1993-05-25
Abstract: ABSTRACT OF THE DISCLOSURE:            An electric furnace includes a furnace vessel arranged on a furnace platform and covered by a furnace lid liftable  and lowerable  by a lid lifting mechanism and pivotable from  a position  above the furnace vessel into a position  lateral of the furnace vessel,  and back,  by a lid pivoting mecha-nism.  A lid supporting framework pivotably mounted lateral of the furnace vessel and including at least one lid brack-et  is  provided  for lifting,  lowering and  pivoting  the furnace lid. In order that the high-current cables are only slightly twisted when pivoting the furnace lid, despite the pivot axis for the furnace lid being arranged  as close  to the furnace vessel as possible,  the lid supporting frame-work is pivotably connected with the furnace platform by an oscillating crank hinged to it.  The lid supporting  frame-work, under formation of a coupler, either is hinged to the furnace  platform  by means of a further oscillating  crank under formation of a four-bar linkage or is guided with  by one  point  along a guide arranged on the furnace  platform under formation of a thrust crank.
Patent CA-1296947-C (CA)
Title: Spot deposition for liquid ink printing
Inventor: LIN LARRY W
IPC: H04N1/191
Filed: 1988-05-19
Granted: 1992-03-10
Abstract: ABSTRACT OF THE DISCLOSURE   A method of depositing spots of liquid ink upon selected pixel centers on a substrate having poor ink absorptive properties so as to prevent the flow of liquid ink from one spot to an overlapping adjacent one. The line of information is printed in at least two passes so as to deposit spots of liquid ink on selected pixel centers in a checkerboard pattern wherein only diagonally adjacent pixel areas are deposited in the same pass. On the second pass the complementary checkerboard pattern is deposited. Ink is not deposited on horizontally or vertically adjacent pixel areas during the single pass since the spots on these adjacent areas have overlapping portions.
Patent CA-1288139-C (CA)
Title: Electrical power connector
Inventor: BRUCHMANN RICHARD A
IPC: H01R12/82
Filed: 1988-06-20
Granted: 1991-08-27
Abstract: ABSTRACT               An electrical power connector for PC boards or bus bars having low insertion force and low voltage drop across the connector. The connector features a female receptacle having a double set of opposing rows of multipoint spring contacts, mating with a two-tiered male plug. The spring contacts make electrical contact to the tiers of the male plug.
Patent CA-1304012-C (CA)
Title: Metering device
Inventor: GRUETT DONALD G
IPC: G01F11/02
Filed: 1988-07-15
Granted: 1992-06-23
Abstract: Abstract Of The Disclosure The metering device for a liquid medium comprises a cylinder and a piston operatively disposed therein to define a metering chamber ahead of the piston.  The outlet end of the cylinder is open and closed by check valve means.  The piston is driven forwardly through a working stroke to force the liquid medium in the metering chamber out of the chamber and past the check valve means.  The piston breaks the plane of the open end of the cylinder on each working stroke to preclude entrapment of air in the metering chamber and thus provide for more accurate metering.
Patent CA-1299529-C (CA)
Title: Towing device
Inventor: BRUBAKER LELAND O
IPC: B60P3/12
Filed: 1988-07-28
Granted: 1992-04-28
Abstract: ABSTRACT           A vehicle towing device has an elongate stinger adapted for pivotal attachment at one end to a towing vehicle and a rigid transverse bar that is fixed to extend horizontally at the rear end of the stinger.  At each end of this bar is a rearwardly directed wedge shaped scuff plate.  A mounting element at each end of the transverse bar is pivotable about a first axis parallel to the bar and located in front thereof, and about a second axis at right angles to the first axis.  The mounting element extends rearwardly in bearing engagement with the upper side of the transverse bar.  An elongate retaining arm has an elongate shank passing through a tubular socket formed in the mounting element to extend rearwardly therefrom, and terminates in a wheel-engaging portion.  The arrangement is such that in use the stinger can be lowered into engagement with the ground and then moved rear-wardly to bring the scuff plates into engagement with the wheels of a vehicle to be towed, whereupon each mounting element can be pivoted to swing the wheel engaging portion of the associated retaining arm into engagement behind the corresponding vehicle wheel such that the latter is cradled between such wheel engaging portion and the opposed scuff plate, whereupon the towing device can be raised to lift the wheels and thus the end of the vehicle to be towed, the weight of the vehicle thus supported acting to urge the mounting element into engagement with the upper surface of the transverse bar.
Patent CA-1320917-C (CA)
Title: Conduites tubulaires flexibles stables en longueur sous l'effet d'une pression interne
Inventor: OCHSNER RICHARD H
IPC: F16L11/08
Filed: 1988-08-02
Granted: 1993-08-03
Abstract: L'invention est relative à une conduite tubulaire flexible comportant une gaine interne d'étanchéité, une armure constituée d'au moins deux paires de nappes de fils enroulés hélicoïdalement, les deux nappes d'une même paire étant composées de fils identiques posés selon un même angle d'armage mais en sens opposé, et une gaine externe de protection. Tous les fils sont posés selon l'un de deux angles d'armage l'un inférieur à 55.degree. (.alpha.a) l'autre supérieur à 55.degree. (.alpha.b) les fils d'au moins une paire de nappes présentant un même angle d'armage .alpha.a tel que 40.degree. ? .alpha.a ? 53.degree., les fils d'au moins une paire de nappes présentant un même angle d'armage .alpha.b tel que 57.degree. ? .alpha.b ? 70.degree..
Patent CA-1302808-C (CA)
Title: Control system for expelling liquid from a pneumatic actuator
Inventor: OSWALD CHARLES W
IPC: F15B11/06
Filed: 1988-08-09
Granted: 1992-06-09
Abstract: Abstract of the Disclosure Control System for Expelling Liquid From a Pneumatic Actuator A control system for a pneumatic actuator uses pressurized gases, such as air, as the actuating medium.  Such gases and particularly air commonly contain moisture which condenses to form a liquid, such as water, which collects in a closed chamber of an expandable chamber assembly in the pneumatic actuator.  In cold climates, the water freezes, preventing proper control of the pneumatic actuator. By providing a control system having a valve positioned elevationally higher or in close proximity to a pneumatic actuator and a tube which extends into the closed chamber of the expandable chamber assembly, water which is contained in the closed chamber is expelled from the elevationally lowest portion of the assembly when the valve is shifted to exhaust the air from the control system.
Patent CA-1334582-C (CA)
Title: Microbial decontamination of soils contaminated with hydrocarbons, in particular mineral oils by microbial oxidation
Inventor: LINDOERFER WALTER
IPC: B09B5/00
Filed: 1988-09-29
Granted: 1995-02-28
Abstract: The microbial decontamina-tion of soils contaminated with hydrocarbons, in particu-lar with mineral oils, by microbial oxidation is improved by a process in which in addition to supplying the oxygen necessary for degradation, by aeration, soluble nut-rients, water and soluble or dispersed biosurfactants as such or mixed with chemical surfactants are metered into the contaminated soils directly or into the removed con-taminated soil layers, in one or more batches at time intervals, in an amount such that the formation of toxic intermediates which slow down or block microbial degra-dation is prevented, the accessibility of mineral oils and their products for the microorganisms is simul-taneously increased and, as a result, accelerated, virtually complete mineralization by respiration to CO2 and H2O is effected.
Patent CA-1312998-C (CA)
Inventor: LIPPERT MARY E
IPC: A61F13/15
Filed: 1988-10-11
Granted: 1993-01-26
Abstract: ABSTRACT The present invention provides a distinctive absorbent article which includes a backsheet layer which delimits at least one waistband portion of the article.  A substantially liquid-permeable topsheet layer is located in facing relation with an inner surface of the backsheet layer, and an absorbent body is located between the topsheet layer and the backsheet layer.  An elastic member, which is connected to the waistband portion, is composed of an elastomeric, nonwoven fibrous web material, and is constructed and arranged to shirr the waistband portion.
Patent CA-1340179-C (CA)
Title: Soil-metal arch bridge on reinforced earth abutments
Inventor: KENNEDY JOHN B
IPC: E01F5/00
Filed: 1988-11-23
Granted: 1998-12-15
Abstract: Commonly known soil-metal structures are built in the form of buried arches or closed conduits with circular, elliptic or pipe arch configuration.  They are  used  as  bridges,  underground  shelters  and underground storage.   In the case of buried arches, concrete footings supported by undisturbed soil are used.   If more headroom is required the arches are supported by reinforced-earth abutments.   According to the invention the metal structure is tied to the surrounding soil, such as granular backfill by means of layers of horizontally placed flat bars (strips). In  addition,  the  soil  cover  above  the  metal structure is reinforced by layers  of horizontally placed flat bars  (strips).    In  this  manner,  the contribution of the entire reinforced soil mass to the stability of the composite structure is assured.